First, I never mention about all devices, I said that is something happening to my note 10.1 2014 edition. Tried with no sd card. Hard factory reset and nothing. Oh also tried the s voice and no success. I know is not only me. We have a few people that have this problem. On my galaxy note 3 I have no problem. When I press the lock or power button the light shows up immediately. But on my tablet it takes 1 or 2 sec to light up.
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